Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica)
Very few studies have investigated marine microbial colonization in polar regions, but climate-changing scenarios stress the importance of these investigations to protect life in such extremely vulnerable ecosystems. In two different coastal sites of the Ross Sea (Road and Tethys Bays, Antarctica) e...
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ftdoajarticles:oai:doaj.org/article:4c1beb90e9d24ddebfb6ba93461f29c4 2023-05-15T13:33:27+02:00 Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) Carmela Caroppo Maurizio Azzaro Ombretta Dell’Acqua Filippo Azzaro Giovanna Maimone Alessandro Ciro Rappazzo Francesco Raffa Gabriella Caruso 2022-11-01T00:00:00Z https://doi.org/10.3390/jmse10111714 https://doaj.org/article/4c1beb90e9d24ddebfb6ba93461f29c4 EN eng MDPI AG https://www.mdpi.com/2077-1312/10/11/1714 https://doaj.org/toc/2077-1312 doi:10.3390/jmse10111714 2077-1312 https://doaj.org/article/4c1beb90e9d24ddebfb6ba93461f29c4 Journal of Marine Science and Engineering, Vol 10, Iss 1714, p 1714 (2022) marine colonization plastisphere polyvinyl chloride polyethylene prokaryotes microalgae Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 article 2022 ftdoajarticles https://doi.org/10.3390/jmse10111714 2022-12-30T20:13:01Z Very few studies have investigated marine microbial colonization in polar regions, but climate-changing scenarios stress the importance of these investigations to protect life in such extremely vulnerable ecosystems. In two different coastal sites of the Ross Sea (Road and Tethys Bays, Antarctica) exposed to different stressors, the microbial biofilm colonizing the surface of plastic (polyvinyl chloride, PVC, and polyethylene, PE) panels left submerged in two experiments at different timescales (“short-term”: 3 months, and “long-term”: 9 and 12 months) was studied. The abundance and metabolic enzymatic activities [leucine aminopeptidase (LAP), beta-glucosidase (GLU) and alkaline phosphatase (AP)] of the prokaryotes and the microalgal abundance and species composition were analyzed, in parallel with the main environmental parameters. The prokaryotic community showed higher abundance and metabolic activities on PVC than on PE as opposed to microalgae. A peak in the microfouling prokaryotic abundance and metabolic functions was frequently recorded after 3 months of immersion, corresponding to the late austral summer period. LAP and AP were the most active enzymes, suggesting that microbial metabolic profiles were modulated by labile organic substrates. Our results suggest that the composition and function of microbial biofilm could be considered as sentinels of natural or anthropic-related disturbances. Article in Journal/Newspaper Antarc* Antarctica Ross Sea Directory of Open Access Journals: DOAJ Articles Austral Ross Sea Journal of Marine Science and Engineering 10 11 1714 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
marine colonization plastisphere polyvinyl chloride polyethylene prokaryotes microalgae Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
spellingShingle |
marine colonization plastisphere polyvinyl chloride polyethylene prokaryotes microalgae Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Carmela Caroppo Maurizio Azzaro Ombretta Dell’Acqua Filippo Azzaro Giovanna Maimone Alessandro Ciro Rappazzo Francesco Raffa Gabriella Caruso Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) |
topic_facet |
marine colonization plastisphere polyvinyl chloride polyethylene prokaryotes microalgae Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
description |
Very few studies have investigated marine microbial colonization in polar regions, but climate-changing scenarios stress the importance of these investigations to protect life in such extremely vulnerable ecosystems. In two different coastal sites of the Ross Sea (Road and Tethys Bays, Antarctica) exposed to different stressors, the microbial biofilm colonizing the surface of plastic (polyvinyl chloride, PVC, and polyethylene, PE) panels left submerged in two experiments at different timescales (“short-term”: 3 months, and “long-term”: 9 and 12 months) was studied. The abundance and metabolic enzymatic activities [leucine aminopeptidase (LAP), beta-glucosidase (GLU) and alkaline phosphatase (AP)] of the prokaryotes and the microalgal abundance and species composition were analyzed, in parallel with the main environmental parameters. The prokaryotic community showed higher abundance and metabolic activities on PVC than on PE as opposed to microalgae. A peak in the microfouling prokaryotic abundance and metabolic functions was frequently recorded after 3 months of immersion, corresponding to the late austral summer period. LAP and AP were the most active enzymes, suggesting that microbial metabolic profiles were modulated by labile organic substrates. Our results suggest that the composition and function of microbial biofilm could be considered as sentinels of natural or anthropic-related disturbances. |
format |
Article in Journal/Newspaper |
author |
Carmela Caroppo Maurizio Azzaro Ombretta Dell’Acqua Filippo Azzaro Giovanna Maimone Alessandro Ciro Rappazzo Francesco Raffa Gabriella Caruso |
author_facet |
Carmela Caroppo Maurizio Azzaro Ombretta Dell’Acqua Filippo Azzaro Giovanna Maimone Alessandro Ciro Rappazzo Francesco Raffa Gabriella Caruso |
author_sort |
Carmela Caroppo |
title |
Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) |
title_short |
Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) |
title_full |
Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) |
title_fullStr |
Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) |
title_full_unstemmed |
Microbial Biofilms Colonizing Plastic Substrates in the Ross Sea (Antarctica) |
title_sort |
microbial biofilms colonizing plastic substrates in the ross sea (antarctica) |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/jmse10111714 https://doaj.org/article/4c1beb90e9d24ddebfb6ba93461f29c4 |
geographic |
Austral Ross Sea |
geographic_facet |
Austral Ross Sea |
genre |
Antarc* Antarctica Ross Sea |
genre_facet |
Antarc* Antarctica Ross Sea |
op_source |
Journal of Marine Science and Engineering, Vol 10, Iss 1714, p 1714 (2022) |
op_relation |
https://www.mdpi.com/2077-1312/10/11/1714 https://doaj.org/toc/2077-1312 doi:10.3390/jmse10111714 2077-1312 https://doaj.org/article/4c1beb90e9d24ddebfb6ba93461f29c4 |
op_doi |
https://doi.org/10.3390/jmse10111714 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
10 |
container_issue |
11 |
container_start_page |
1714 |
_version_ |
1766042386055561216 |